The HPJ-2S has been a favorite of jewelers for many years.

Built for performance and reliability, this professional-grade steam generator is ideal for high-demand environments. With a durable ASME-listed build, advanced safety controls, and simple maintenance, it’s designed for long-term efficiency and safety.

What is the normal operating pressure?
75–80 PSI.

How often should I drain the unit?
Daily when new; weekly once in regular use.

When should I replace the glass tube or rubber washers?
Inspect every 6 months; replace annually.

How do I clean the boiler?
Add a cap full of each time you fill up the tank.

Best way to drain the steamer?
Let pressure drop to ~10 PSI. Open the drain valve carefully. Once at 0 PSI, switch to FILL mode to allow airflow and complete draining.

What causes rust in the sight glass?
The iron tanks in most steamers will rust when exposed to air and this is normal and will not hurt the quality of the steam that is produced. The rust can be avoided by religiously keeping your steamer full of water. We recommend that you make steamer maintenance a daily routine in your shop, and that job #1 is to fill it up every morning. If you have severe rust build-up, a series of daily blowouts will be required to help clean out the tank, but nothing will ever make it go away completely.

Why is blowing out the steamer important?
All cast iron tank steamers require regular blowouts as part of their routine maintenance. Steamer blowouts are necessary to maintain a clean tank and a long-lasting heating element. The harder (mineral rich) your water supply is, the more often you will need to blow out your steamer. Blowing out usually requires that you move your steamer outside so the risk of burning someone or damaging property is minimized. Blowing out requires that the bottom drain valve be carefully opened while the steamer is still hot BUT UNDER MINIMAL 10LB. OR LESS pressure and with less than 1/4 tank of water. You must make sure that you and anyone else nearby are well protected from the super-hot steam. Please read your owner's manual for detailed instructions on how to blow out your steamer. Some manufacturers recommend that you blow out your brand-new steamer every day for the first week of operation, then every week for a month, then once a month forever. Steamer owners who never bother to blow out their steamers can be in for a rude surprise when their practically brand new but just out of warranty steamer stops working.

Why is my steamer leaking?
Steamers require regular maintenance. Leaks are usually due to worn parts like the sight glass, gaskets, valves, or solenoids. Replace parts as needed and check the safety valve and thermostat if over-pressurization occurs.